Many scholars believe our founding fathers envisioned America being the land of the free based off a very unique principle; free will. What this means is that men and women have the “free will” to choose based off their own morally driven social and cultural ideologies between right and wrong without any constraints. The oldest script depicting the truest and most pure sense of “free will” can be found in the Christian Bible. What is right for one person is not necessarily the same as what is right for another though, making the concept even more complex.
As long as you don't criticize a religion for being misogynistic, violent and barbaric you can pretty much do whatever you want.